Home / 911,968.05-1,258,493.96-498,486.27

Finding the Fourth Proportional to 911,968.05, 1,258,493.96 and 498,486.27

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Solution

The fourth proportional to 911,968.05, 1,258,493.96 and 498,486.27 is: 687,899.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,968.05 : 1,258,493.96 = 498,486.27 : x
  2. Step 2: Convert to fraction form
    911,968.05/1,258,493.96 = 498,486.27/x
  3. Step 3: Cross multiply
    911,968.05x = 1,258,493.96 × 498,486.27
  4. Step 4: Simplify right side
    911,968.05x = 627,341,961,837.95
  5. Step 5: Solve for x
    x = 627,341,961,837.95/911,968.05
  6. Step 6: Final answer
    x = 687,899.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.